68Q5
Related type:
8BQS
Miniature type used in the output stage of audio-frequency amplifiers.
Outline 8E, OUTLINES SECTION.
Tube requires miniature nine-contact socket and may be mounted in any position.
HEATER VOLTAGE (AC/DC) ... . HEATER CURRENT ...•.
DIRECT INTERELECTRODE CAPACITANCES:
Grid No.1 to Plate. . . .. . ... . Grid No.1 to Cathode. Heater, Grid No.2, and Grid No.3 ... . Plate to Cathode, Heater, Grid No.2, and Grid No.3 ... . Grid No.1 to Heater ... .
CLASS Al AMPLIFIER Maximum Ratings, (Design-Center Values):
PLATE VOLTAGE ... "
GRID-No.2 (SCREEN-GRID) VOLTAGE ... . GRID-No.1 (CONTROL-GRID) VOLTAGE, Positive-bias value ... . GRID-No.2 INPUT ... . PLATE DISSIPATION ... . CATHODE CURRENT ... . PEAK HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode ... . Heater positive with respect to cathode ... .
• The de component must not exceed 100 volts.
Typical Operation:
Plate Voltage ... . Grid-No.2 Voltage ... . Grid-No.1 (Control-Grid) Voltage ... . Peak AF Grid-No.1 Voltage ... . Zero-Signal Plate Current ... . Maximum-Signal Plate Current ... . Zero-Signal Grid-No.2 Current ... . Maximum-Signal Grid-No.2 Current ... . Plate Resistance (Approx.) ... . Transconductance . ... . Load Resistance ... . Total Harmonic Distortion ... . Maximum-Signal Power Output ... . Maximum Circuit Values:
Grid-No.1-Circuit Resistance:
For fixed-bias operation ..•...
For cathode-bias operation ... . PUSH-PULL CLASS ABI AMPLIFIER Maximum Ratings: (Same as for single-tube class At amplifier) Typical Operation, (Valu •• are for two tub.s):
Plate Supply Voltage ... . Grid-No.2 Supply Voltage ... . Cathode-Bias Resistor ... . Peak AF Grid-No.1-to-Grid-No.l Voltage ... . Zero-Signal Plate Current ... . Maximum-Signal Plate Current ... . Zero-Signal Grid-No.2 Current ... . Maximum-Signal Grid-No.2 Current ... . Effective Load Resistance (Plate-to-plate) ... . Total Harmonie Distortion ... . Maximum-Signal Power Output ... . Maximum Circuit Values:
Grid-No.I-Circuit Resi.tance:
For fixed-bias operation ... . For cathode-bias operation ... .
188
NC
~
C;!P5C;1 BEAM POWER TUBE Glass octal types used as hori-zontal deflection amplifiers in tele-vision receivers. Outline 15C, OUT-LINES SECTION. Tubes require oc-tal socket and may be mounted in any position. These types may be supplied with pin No.1 omitted. Type 6BQ6-GT is a DISCONTINUED type listed for reference only. DIRECT INTERELECTRODE CAPACITANCES (Approx., 6BQ6-GTB/6CU6): 1.2Grid No.1 to Plate... 0.6 Grid No.1 to Cathode, Heater, Grid No.2, and Grid No.S. •... .... 15 Plate to Cathode, Heater, Grid No.2, and Grid No.S... ... 7
TRANSCONDUCTANCE* (6BQ6-GTB/6CU6) 5900
Mu-FACTOR, Grid No.2 to Grid No.1'... 4.S
• For plate volts, 250; grid-No.2 volts, 150; grid-No.1 volts, -22.5; plate rna., 57; grid-No.2 rna., 2.1.
*. For plate and grid-No.2 volts, 150; grid-No.1 volts, -22.5.
HORIZONTAL DEFLECTION AMPLIFIER For operation in a 51!5-line, !O-/rame 8118tem Maximum Ratings, (De8ign-Center Values): 6BQ6-GT DC PLATE VOLTAGE... 550 max PEAK POSITIVE-PULSE PLATE VOLTAGEe (Absolute Maximum) 5500tmax PEAK NEGATIVE-PULSE PLATE VOLTAGE. • . . . . . . . -1250 max DC GRID-No.2 (SCREEN-GRID) VOLTAGE. . . . ... 175 max PEAK NEGATIVE-PULSE GRID-No.1 (CONTROL-GRID)VOLTAGE -SOO max PEAK CATHODE CURRENT. . . . 400 max AVERAGE CATHODE CURRENT. . . . . . . . . 110 max GRID-No.2 INPUT... 2.5 max PLATE DISSIPATION# . . . . . . . . 11 max PEAK HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode ... . Heater positive with respect to cathode . . . . BULB TEMPERATURE (At hottest point) . . . . Maximum Circuit Value:
200 max e The duration of the.voltage pulse must not exceed 15 per cent of one horizontal scanning cycle. In a 525-line, SO-frame system, 15 per cent of one horizontaJ scanning cycle is 10 microseconds.
t Under no circumstances should this absolute value be exceeded.
# An adequate bias resistor or other means is required to protect the tube in the absence of excitation.
- The de component must not exceed 100 volts.
MEDIUM-MU TWIN TRIODE Miniature types used in direct-coupled cathode-drive rf amplifier cir-cuits of vhf television tuners. In such
er for the other unit. These types are also used in push-pull cathode-drive rf amplifiers.
Outline 8B, OUTLINES SECTION. Tubes require miniature nine-contact socket and may be mounted in any position. For typical operation as a resistance-coupled amplifier, refer to RESISTANCE-COUPLED AMPLIFIER SECTION. Type 6BQ7 is a DISCONTINUED type listed for reference only.
HEATER VOLTAGE (AC/OO) ... . HEATER CURRENT ...•....
DIRECT INTERELECTRODE CAPACITANCES (6BQ7-A):o Unit No.1 Grid to Plate. . . . . . . . • . . . 1 .2 Grid to Cathode, Heater, and Internal Shield. . . . . . 2.6 Cathode to Grid, Heater, and Internal Shield ... . Plate to Cathode, Heater, and Internal Shield ... . 1.2
6.3 UnitNQ.1l 0.4
1.2 5.0 Plate to Grid, Heater, and Internal Shield... 2.2 Plate to Cathode. . . . . . 0.12 0.12
RCA Receiving Tube Manual
CLASS Al AMPLIFIER (Each Unit) Maximum Ratings, (Design-Center Values):
PLATE SUPPLY VOLTAGE .. , •••.•....•.•••.••.•••••••••••.••••••••• " • "
PLATE DISSIPATION . • • • • . . . . • . • . • . . . • . . . . • . . . • . • . . • • • . • • . • • • • • • • . . • • . • CATHODE CURRENT •• ' . . . • . • . . • • • • • • • • . . . • . • . . • • . • . . • . • • . . • • • . • • • • PEAK HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode ...•
Heater positive with respect to cathode . . . .
Characteristics: 6BQ7
Plate Supply Voltage. . • . .. .. . . .. . . .. . .. . . . .. 150
Cathode-Bias Resistor. . . . . . . . 220
Amplification Factor. . . 35
Plate Resistance (Approx.) ... . . 5800
Transconductance. . . . . . . . . .. 6000
Plate Current. . . 9
Grid Voltage (Approx.): For plate current of 100 "a ... . For plate current of 10 "a. . . . . . -10
Maximum Circuit Value: Grid-Circuit Resistance ... '" ... .
o With external shield connected to internal shield.
250*maz 2maz 20ma", 200*ma", 200_a", 6BQ7-A
150 220 5900 38 6400 9 -6.5
0.5 ma",
volt.
watts rna volt.
volts volts ohlll.l ohm.
"mho.
rna volt.
volts megohm
* In cathode-drive circuits with direct-coupled drive, it is permissible for this voltage to be a. high a.
300 volts .
• The dc component must not exceed 100 volts.
o 100
6BR8
AVERAGE PLATE CHARACTERISTICS
200
FOR EACH UNIT TYPE 6BQ7-A
E,.~e~3 VOLTS
300 .00
PLATE VOLTS
MEDIUM-MU TRIODE-SHARP-CUTOFF PENTODE
Miniature types used in a wide
6BR8A
variety of applications in color andRelated type: black-and-white television receivers.
S8RS Especially useful as combined triode oscillator and pentode mixer in vhf
100 .ZCM-TSJ.ftIT
television tuners. Type 6BR8-A has a controlled heater warm-up time for use in receivers employing series-connected heater strings. Outline 8B, OUTLINES SECTION. Except for basing arrangement and grid-No.l-to-plate capacitance of pentode unit, these types are identical with miniature types 6U8 and 6U8-A, respecti vely.
190
6B53
Related types:
12853, 17853
HALF-WAVE VACUUM RECTIFIER Novar type used as damper tube in horizontal-deflection circuits of black-and-white television receivers.
Outline IOD, OUTLINES SECTION.
Tube requires novar nine-contact
sock-========= Technical Data =========
et and may be mounted in any position. Socket terminals 1, 3, 6, and 3 should not be used as tie points; it is recommended that socket clips for these pins be removed to reduce the possibility of arc-over and to minimize leakage. It is especially impor-tant that this tube, like other power-handling tubes, be adequatdy ventilated.
HEATER VOLTAGE (AC /OC) ... . HEATER CURRENT ... . DIRECT INTERELECTRODE CAPACITANCES (Approx.):
Plate to Cathode and Heater ..
Cathode to Plate and Heater ..
Heater to Cathode ....
DAMPER SERVICE
For operation in a 525-line, 30-frame system Maximum Ratings, (Design-Maximum Values):
PEAK INVERSE PLATE VOLTAGE-. . . . ... . PEAK PLATE CURRENT. . ... .. . . ... . DC PLATE CURRENT ... . PLATE DISSIPATION ... . PEAK HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode .. . Heater p,sitive with respect to cathode ... . Characteristics, Instantaneous Value:
Tube Voltage Drop for plate current of 140 rna ... .
6.3 volts
1.2 amperes
6 5 pf
9 pf
2.8 pf
5000 max volts 1100 max rna 200 max rna 6 max watts 5000·max volts 3000max volts
12 volts
- The duration of the voltage pulse must not exceed 15 per cent of one horizontal scanning cycle. In a 525-line, 30-frame system, 15 per cent of one horizontal scanning cycle is 10 microseconds.
• The de component must not exceed 900 volts.
o The de component must not exceed 100 volts H
MEDIUM-MU TWIN TRIODE Miniature type used in direct-coupled cathode-drive rf amplifier cir-cuits of vhf television tuners. In such
I circuits, one triode unit is used as the .. z IS direct-coupled grounded-cathode
driv-6B58
Related type:
4Bsa
er for the other unit. This type is also used in push-pull cathode-drive rf amplifiers.
Outline 3B, OUTLINES SECTION. Tube requires miniature nine-contact socket and may be mounted in any position. Heater volts (ac/dc), 6.3; amperes, 0.4.
CLASS Al AMPLIFIER (Eaeh Unit) Maximum Ratings, (Design-Center Values):
PLATE VOLTAGE . . . . PLATE DISSIPATION. . . . . .. . ... . CATHODE CURRENT . . . . PFlAK HEATER-CATHODE VOLTAGE:
Heat.er negative with respect to cathode . . . . Heater positive with respect to cathode . . . . Characteristics:
Plate-Supply Voltage . . . . Cathode-Bias Resistor. .. ... . ... . Amplification Factor . . . " ... . Plate Resistance (Approx.) . . . . Transconductance. . . .. . ... . Plate Current . . . . Grid Voltage (Appro •. ) for plat" current. o( 10 /la" . . . . Maximum Circuit Value:
Grid-Circuit Resistance . . . .
* This value applies to unit No.2 only.
SHARP-CUTOFF TWIN PENTODE Miniature type used as combined sync separator, sync clipper, and agc amplifier tube in television receivers.
Outline 3D, OUTLINES SECTION.
Tube requires miniature nine-contact socket and may be mounted in any position.
150 max volts 2 max watts 20 max rna 200 max volts 200 max volts
150 volts
220 ohms
5000 36 ohms
7200 ~mhos
10 rna
-7 volta
0.5 max megohm
6BU8
Related typal:
3BUa,4BUa
RCA Receiving Tube Manual
HEATER VOLTAGE (AC/DC) . . . . HEATER CURENT . . . . DIRECT INTERELECTRODE CAPACITANCES:
Grid No.3 to Plate (Each Unit) . . . '.' ... . Grid No.1 to All Other Electrodea . . . . Grid No.3 to All Other Electrodes (Each Unit) . . . . Plate to All Other Electrodes (Each Unit) . . . . Grid No.3 of Unit No.1 to Grid No.3 of Unit No.2 . . . .
CLASS A, AMPLIfiER Maximum Ratings, (D.sign-Maximum Values):
PLATE VOl.TAGE (Each Unit) . . . . GRID-No.3 (SUPPRESSOR-GRID) VOLTAGE (Each Unit):
Peak positive value ... . DC negative value . . . . DC positive value ... . GRID-No.2 (SCREEN-GRID) VOLTAGE . . . . GRID-No.1 (CONTROIrGRID) VOl.TA!lE, Negative bias value . . . . CATHODE CURRENT . . . . GRID-No.2 INPUT. . . . . . .. . ... . PLATE DISSIPATION (Each Unit) . . . . PEAK HEATER-CATHODE VOl.TAGE:
Heater negative with respect t.o cathode . . . . Heater posit.ive with respect t.o cathode ... . Characteristics: With 80th Unit. Operating
Plate Voltage (Each Unit) . . . . . . . . 100 Grid-No.3 Voltage (Each Unit) . . . . . -10 Grid-No.2 Voltage. . . . . . . . 67.5 Grid-No.1 Voltage. . . . . . . ... ...
*
Plate Current (Each Unit) . . . . Grid-No.2 Current. . . . . . 6.5 Cathode Current. . . .. ... 6.6
With One Unit Operatingt Plate Voltage... 100 Grid-No.3 Voltage. . . . . . 0 Grid-No.2 Voltage.. . . . 67.5 Grid-No.1 Voltage. . . .. ... 0 Grid-No.3 Transconductance . . . . Grid-No.1 Transconductance. . . . . . .. . . 1500 Plate Current . . . . Grid-No.3 Voltage (Approx.) for plate current of 100 "a . . . . Grid·No.l Voltage (Approx.) for plate current of 100 I'a . . . .
5
TVPE 6BU8
AVERAGE CHARACTERISTICS WITH Ec, AS VAR'ABLE
GRIO-N!I VO\.T$ [C -I.
~Ef. 8.3 VOLTS
V
GRIO-N! 3 VOLTS*O
.l
GRIO-N! 2 VOLTS.87.S . / PLATE AND GRID/
H!3 OF OTHER UNIT -GROUNDED
....-
I""" GRIO-N!I MILLI~~ERES ·~11,.O.5J / " 1--
- - -
--/ v::: ... b.,o
t
~,
....V
~-
.O.!.1// V .. - - -- - -- -- -- -
----V~ V
-, P.
VI"""~
r-0.5
o 50 '00 150 200 250 300 350
PLATE VOLTS
192
6.3 volts
0.3 ampere
1.9 pf
6 pf
3.6 pf
3 pf
0.015 max pf
300 max volts 50 max volts -50 max volts
a max volts 150 max volts -50 max volt.
12 max rna 0.75 max watt 1.1 max watts 200 max volts 200·max volt.
100 volt.
0 volts
67.5 volts
volts
2.2 rna
3.3 rna
7.8 rna
100 volts
0 volt.
67.5 volts
•
voltslRO ,umhos
~lmhoB
2.2 rna
-4.5 volts
--2.3 volt..
0
-0.5
-I.Q.--'.5 1-2.0
========= Technical Data
========~Maximum Circuit Values:
Grid-No.3-Circuit Resistance (Each Unit) ... .
Grid-No.l-Circuit Resistance ... . o . 5 max megohm
o . 5 max megohm
• The dc component must not exceed 100 volts.
*
Adjusted to give a dc grid-No.1 current of 100 microamperes.t With plate and grid No.3 of the other unit connected to ground.
AVERAGE CHARACTERISTICS
2.5;--' __ - . __ -r __ ;r~~~~W~'~TH~E;C~3~A~S~V~A~RI~A~BL;E~~~~-r __ ~~~--r--,
~~f-":
pI-
~!--r:::.~ TYPE 6BUB1
I.----:::~...-
V ...
..!-.. • ...v ...-./
[ foe.3 VOLTS.,¥ f""'./ ... 1./ V ,/"" I / GRIO-N •• VOLTs-n.S
o/!/v /
V / 'V /
V GA!~:IN!IMILLIAMPERES2.0
I'
/1 Y./V / V V
/ V 1'/ PLt:~T~~ 't~,~N!3I-f-'ft/,-... I/<--f-'~+ ./ V GROUNDED
::: / / V
;VI' ,,/
V+,y ~ V /
!
1.5 . / I /I I ' ~i ~f
VI V /
~
IIII / / ~1 1,( f",L, II J
II 1 _ _ 1-~
1.0I / /
VII li
J17
1 ... /V / /
I 7 7/ /
III / ~Z
,0',£-'/1--A-V_V-l_os
'/11 V V V / I V / / )7 £:';.L-"/-I--+-1 'lJ /VVV ..Y. __ / V~ y-Y1
o 50
H
100 ISO 200 250
PL4T( VOl.TS
TWIN DIODE--MEDIUM-MU TRIODE
300
Miniature type used as combined synchronous detector and chrominance amplifier in color television receivers;
also used as combined FM detector and af voltage amplifier. Tube has
con-350 ",,00 02CM-g.4Z9T
6BV8
trolled warm-up time for use in series-connected heater strings. Outline 8B, OUT-LINES SECTION. Tube requires miniature nine-contact socket and may be op-erated in any position. Heater volts (ac/dc), 6.3; amperes, 0.6; warm-up time (average), 11 seconds.
TRIODE UNIT AS CLASS At AMPLIFIER Maximum Ratings, (Design-Maximum Values):
PLATE VOLTAGE.. . . . . . . . . ...
GRID VOLTAGE, Positive-bias value . . . . ...
PLATE DISSIPATION . . . . PEAK HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode ... .
Heater positive with respect to cathode .... . ...
...
Characteristics:
Plate Voltage ... . 75 Grid Voltage ... . 0 Cathode Resistor ... .
Amplification Factor ... . Plate Resistance (Approx.) ... .
Transconductance. . ... .
Plate Current. . . . ... . 14 Grid Voltage (Approx.) for plate current of 100 ).Ia ... . Maximum Circuit Values:
Grid-Circuit Resistance:
For fixed-bias operation ... . For cathode-bias operation ... .
330 max volts
o max volts 2.7 max watts 200 max volts 2000max volts
200 volts
volts
330 ohm.
33
5900 ohms
5600 pmhos
11 rna
-11 volts
O. 1 max megohm O. 5 max megohm
RCA Receiving Tube Manual
DIODE UNITS-TWO Values are for eaeh unit Maximum Ratings, (Design-Maximum Values):
PLATE CURRENT ... . PEAK HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode . . . . Heater positive with respect to cathode .. . Characteristics, Instantaneous Test Candition:
Tube Voltage Drop for plate current of 23 rna.
o The de component must not exceed 100 volts.
6BW4
Related type:
12BW4
FULL-WAVE VACUUM RECTIFIER Miniature type used in full-wave NC
power supplies having high dc out-put current requirements. Outline 8D, OUTLINES SECTION. Type 6BW4
10 max
requires miniature nine-contact socket PDz K
and may be mounted in any position. It is especially important that this tube, like other power-handling tubes, be adequately ventilated Heater volts (ac/ dc), 6.3;
amperes, 0.9.
FULL- WAVE RECTIFIER Maximum Ratings, (Design-Center Values):
PEAK INVERSE PLATE VOLTAGE ... . AC PLATE SUPPLY VOLTAGE (Per Plate, rms) ... . STEADy-STATE PEAK PLATE CURRENT (Per Plate) ... . DC OUTPUT CURRENT ... . TRANStENT PEAK PLATE CURRENT (Per Plate) ... . DC HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode ... ' ... " ... . Typical Operation: Filter Input Capacitor AC Plate-To-Plate Supply Voltage (rms)".. ... ... ... 650
Miniature type used in television receivers; diodes are used as horizontal phase detectors; pentode is used as a socket and may be operated in any position.
PENTODE UNIT AS CLASS Al AMPLIFIER Maximum Ratings, (Design-Maximum Values):
PLATE VOLTAGE ... . GRID-No.2 (SCREEN-GRID) SUPPLY VOLTAGE . . . . GRID-No.2 VOLTAGE ... .
GRID-No.1 (CONTROL-GRID) VOLTAGE:
Positi ve-bias value . . . . Negative-bias value . . . .
GRID-No.2 INPUT:
For grid-N 0.2 voltages up to 165 volts ... . For1l:rid~No.2 voltages between 165 and 330 volts.
PLATE DISSIPATION. . . . .. . ... . PEAK HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode ... . Heater positive with respect to cathode ... . Characteristics:
Plate Voltage ... . Grid-No.2 Voltage ... . Cathode-Bias Resistor ... . Plate Resistance (Approx.) . . . ... .
========= Technical Data =========
Transconductance . . . . Grid-No.1 Voltage (Approx.) for plate current of 1OI'a ... . Plate Current.. . . .. . ... . Grid-No.2 Current. ... .
Maximum Circuit Values:
Grid-No.1 Circuit Resistance:
For fixed-bias operation ... . For cathode-bias operation ... .
DIODE UNITS (Each Unit) Maximum Ratings, (Design-Maximum Values):
PLATE CURRENT ... . PEAK HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode ... . Heater positive with respect to cathode. . . . ... .
° The de component must not exceed 100 volts.
MEDIUM-MU TWIN TRIODE
5200 I'mhos
Glass octal type used as combined
vertical deflection amplifier and ver-
6BX7GT
tical deflection oscillator in television receivers. When so operated, it is
AMPLIFICATION FACTOR* ... . PI,ATE RESISTANCE (Approx.)* ... .
VERTICAL DEFLECTION OSCILLATOR OR AMPLIFIER (E(!ch Unit) For operation in a 525-line, SO-frame system
Maximum Ratings, (Design-Center Values): Oscillator DC PLATE VOLTAGE. . . . .. 500 max PEAK POSITIVE-PULSE PLATE VOLTAGE
(Absolute Maximuml# . . . . For both plates with both units operating ... . PEAK HEATER-CATHODE VOLTAGE:
Heater negative with respect to cathode ... . Heater positive with respect to cathode ... . Maximum Circuit Values:
-400 max 525-line, 30-frame system, 15 per cent of one vertical scanning cycle is 2.5 milliseconds.
" Under no circumstances should this absolute value be exceeded.
° The de component must not exceed 100 volts.
• For cathode-bias operation.
~
02.4 SPOIFULL-WAVE VACUUM RECTIFIER
Octal type ha ving high perveance used as a damper tube in horizontal deflection circuits of television receivers or as a rectifier in conven-tional power-supply applications. Outline 19A, OUTLINES SECTION. Tube requires octal socket and may be mounted in any position. It is especially important that this tube, like other power-handling tubes, be adequately ventilated.
Heater volts (ac/dc), 6.3; amperes, 1.6.
Maxi-6BY5GA
mum ratings for damper service (each unit): peak inverse plate volts (absolute maximum), 3000 max;
peak plate rna., 525 max; de plate rna., 175 max. Peak heater-cathode volts: heater negative with respect to cathode, 450 max; heater positive with respect to cathode, 100 max. This type is used principally for renewal purposes.
6BY6
Relaled Iype:
3BY6